Perhaps you should try some spelling variations:
"50 pp decrease" » "50 _ decrease" (Expand Search)
"_ nn decrease" » "_ _ decrease" (Expand Search), "_ ann decrease" (Expand Search), "_ cnn decrease" (Expand Search), "_ knn decrease" (Expand Search)
"5 point decrease" » "_ point decrease" (Expand Search), "3d point decrease" (Expand Search)
"a point decrease" » "_ point decrease" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("50 pp decrease") OR ((("_ nn decrease") OR ((("5 point decrease") OR ("a point decrease"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"50 pp decrease\") OR (((\"_ nn decrease\") OR (((\"5 point decrease\") OR (\"a point decrease\"))))))*".
• Removing quotes may allow a broader search: (( 50 pp decrease ) OR ((( _ nn decrease ) OR ((( 5 point decrease ) OR ( a point decrease ))))))*.